1 /*
2 * Copyright (C) 2009 Francisco Jerez.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27 #include "nouveau_driver.h"
28 #include "nouveau_context.h"
29 #include "nouveau_fbo.h"
30 #include "nouveau_util.h"
31 #include "nv04_3d.xml.h"
32 #include "nv04_driver.h"
33
34 static inline unsigned
get_rt_format(mesa_format format)35 get_rt_format(mesa_format format)
36 {
37 switch (format) {
38 case MESA_FORMAT_B8G8R8X8_UNORM:
39 return NV04_CONTEXT_SURFACES_3D_FORMAT_COLOR_X8R8G8B8_X8R8G8B8;
40 case MESA_FORMAT_B8G8R8A8_UNORM:
41 return NV04_CONTEXT_SURFACES_3D_FORMAT_COLOR_A8R8G8B8;
42 case MESA_FORMAT_B5G6R5_UNORM:
43 return NV04_CONTEXT_SURFACES_3D_FORMAT_COLOR_R5G6B5;
44 default:
45 assert(0);
46 }
47 }
48
49 void
nv04_emit_framebuffer(struct gl_context * ctx,int emit)50 nv04_emit_framebuffer(struct gl_context *ctx, int emit)
51 {
52 struct nouveau_pushbuf *push = context_push(ctx);
53 struct gl_framebuffer *fb = ctx->DrawBuffer;
54 struct nouveau_surface *s;
55 uint32_t rt_format = NV04_CONTEXT_SURFACES_3D_FORMAT_TYPE_PITCH;
56 uint32_t rt_pitch = 0, zeta_pitch = 0;
57 unsigned bo_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR;
58
59 if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT)
60 return;
61
62 PUSH_RESET(push, BUFCTX_FB);
63
64 /* Render target */
65 if (fb->_ColorDrawBuffers[0]) {
66 s = &to_nouveau_renderbuffer(
67 fb->_ColorDrawBuffers[0])->surface;
68
69 rt_format |= get_rt_format(s->format);
70 zeta_pitch = rt_pitch = s->pitch;
71
72 BEGIN_NV04(push, NV04_SF3D(OFFSET_COLOR), 1);
73 PUSH_MTHDl(push, NV04_SF3D(OFFSET_COLOR), BUFCTX_FB,
74 s->bo, 0, bo_flags);
75 }
76
77 /* depth/stencil */
78 if (fb->Attachment[BUFFER_DEPTH].Renderbuffer) {
79 s = &to_nouveau_renderbuffer(
80 fb->Attachment[BUFFER_DEPTH].Renderbuffer)->surface;
81
82 zeta_pitch = s->pitch;
83
84 BEGIN_NV04(push, NV04_SF3D(OFFSET_ZETA), 1);
85 PUSH_MTHDl(push, NV04_SF3D(OFFSET_ZETA), BUFCTX_FB,
86 s->bo, 0, bo_flags);
87 }
88
89 BEGIN_NV04(push, NV04_SF3D(FORMAT), 1);
90 PUSH_DATA (push, rt_format);
91 BEGIN_NV04(push, NV04_SF3D(PITCH), 1);
92 PUSH_DATA (push, zeta_pitch << 16 | rt_pitch);
93
94 /* Recompute the scissor state. */
95 context_dirty(ctx, SCISSOR);
96 context_dirty(ctx, CONTROL);
97 }
98
99 void
nv04_emit_scissor(struct gl_context * ctx,int emit)100 nv04_emit_scissor(struct gl_context *ctx, int emit)
101 {
102 struct nouveau_pushbuf *push = context_push(ctx);
103 int x, y, w, h;
104
105 get_scissors(ctx->DrawBuffer, &x, &y, &w, &h);
106
107 BEGIN_NV04(push, NV04_SF3D(CLIP_HORIZONTAL), 2);
108 PUSH_DATA (push, w << 16 | x);
109 PUSH_DATA (push, h << 16 | y);
110 }
111